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ICAO - CIRCULAR 321

Guidelines for the implementation of GNSS longitudinal separation minima

active, Most Current
Organization: ICAO
Publication Date: 1 January 2010
Status: active
Page Count: 34
scope:

PURPOSE

The purpose of this circular is to provide guidance for applying the global navigation satellite system/distance measuring equipment (GNSS/DME) separation minima.  It is aimed at a worldwide audience within the civil aviation authorities responsible for implementing these and other separation minima.

As a result of the large number of aircraft equipped with instrument flight rules (IFR)- certified GNSS equipment for navigation and its potential use for separation in the procedural environment, the Separation and Airspace safety Panel (SASP) developed the separation minima detailed in this circular for interim use in the period of transition to a widespread implementation of performance-based navigation (PBN). These separation minima are intended to exploit the capabilities and precision of GNSS equipment that, as a minimum. meet the requirements of FAA TSO C129a or better.

Document History

CIRCULAR 321
January 1, 2010
Guidelines for the implementation of GNSS longitudinal separation minima
PURPOSE The purpose of this circular is to provide guidance for applying the global navigation satellite system/distance measuring equipment (GNSS/DME) separation minima.  It is aimed at a worldwide...
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